But Darwin also investigated coral reefs and their formation.

但达尔文也调查了瑚礁及其形成方式。

But when reefs are bleached or damaged, the fish flee, and the reef suffers.

但当瑚礁白化或受损后，鱼群会逃走，礁石也会遭受破坏。

Warming oceans can harm coral reefs, which turtles need to survive.

海洋变暖会损害海龟赖以生存瑚礁。

They're becoming more frequent, giving the reef less time to recover.

瑚白化越来越频繁，供瑚礁恢复时间越来越短。

The open ocean beyond their shallow reef is, in fact, a huge barrier.

外海，即浅礁之外水，实际上是个巨大障碍。

We have to remember that there are still coral reefs that are alive.

我们必须记住，瑚礁还活着。

Almost all of this is ocean and living coral reefs that protect the islands.

保护岛屿几乎都是海洋和生物瑚礁。

Cozumel is part of the Mesoamerican Barrier Reef, the world's second largest reef.

科兹美岛属於中美洲大堡礁一部份，这是世界上第二大瑚礁。

The island nation boasts brilliant white sands, clear waters and vibrant coral reefs.

这个群岛拥有洁白无瑕沙滩，清澈透明海水及充满生瑚礁。

They've never seen the reef, they've never even seen the outdoor light.

他们从来没有见过瑚礁，甚至从来没有接触过户外光线。

The archipelago is celebrated for its rich marine life and underwater coral reefs.

这个群岛以其丰富海洋生物和水下瑚礁而闻名。

Couples can enjoy the white beaches, clear waters and vibrant coral reefs around Palawan Island.

情侣们可以享受巴拉望岛周围白色海滩、清澈海水和充满活力瑚礁。

Coral reefs are already appreciated for their beauty.

瑚礁绚丽外表已备受赞赏。

Like coral reefs, they are a nursery for the oceans.

像瑚礁一样它们是海洋托儿所。

There's still time to save the reef.

我们还有时间拯救瑚礁。

The great barrier reef is the world's largest network of coral structures.

大堡礁是世界最大瑚礁群。

He used to go fishing on the reef.

他也常常到礁石上去钓鱼。

It found them to be the biggest current threat to the world's coral reefs.

研究发现，它们是目前世界上瑚礁面临最大威胁。

If you were to go to most coral reefs today, you'd hear something like this.

你去看看现在大部分瑚礁，会听见这样声音。

This reef dweller is a popular fish.

这种住在瑚礁上鱼很受欢迎。